ZIEHL-ABEGG CXE/AV, Operating Instructions Manual, Page: 65 / 121

Example: Assignment of inputs for temperature sensors
MODBUS
19.12.2018
v_mod_master_io_mapping.vsd
MODBUS Master MODBUS Slave
1A
1B
A
B
Sensor 1
E1
Sensor 2
E2
Sensor 3
E1
AI1 (26.8°C)
AI2 (16.8°C, 5E)
AI3 (7.8°C, 15E)
AI4 (OFF)
AI5 (OFF)
AI3
AI1
E1
AI2
E2
1
2 3
4
MB.h9001
1 Overview display of virtual inputs “ AI1-AI6 ” with display of actual values and programmed functions
2 Assignment of actual input “ E1 ” on MODBUS master to virtual input “ AI1 ”
3 Assignment of actual input “ E2 ” on MODBUS master to virtual input “ AI2 ”
4 Assignement MODBUS holding register 9001 to virtual input "AI3"
Assignment of IOs and display of designations
With the factory default assignment, the designations of the inputs and outputs in the display
correspond to the connection designations (see circuit board and connection diagram imprint).
If you make a different assignment, e.g. assigning the input
“
E2
”
instead of the previous hardware
input
“
E1
”
under
“
AI1
”
(analog input 1), the display and setting is still under
“
E1
”
. In other words, the
designation of the connection and the designation in the display no longer match.
Example of possible assignment for analog input AI1 and AI2
Factory assignment
The actual input “ E1 ” is assigned to the virtual input
“ AI1 ” .
The actual input “ E2 ” is assigned to the virtual input
“ AI2 ” .
1 Actual value display for “ E1 ” and “ E2 ” in Info menu group
2 Overview display of virtual inputs “ AI1-AI6 ” with display of
actual values and programmed functions
3 Assignment of signal at “ E1 ” to analog input “ AI1 ”
4 Assignment of signal at “ E2 ” to analog input “ AI2 ”
Exchanged assignment
The actual input “ E2 ” is assigned to the virtual input
“ AI1 ” .
The actual input “ E1 ” is assigned to the virtual input
“ AI2 ” .
1 Actual value display for “ E1 ” and “ E2 ” in Info menu group
2 Overview display of virtual inputs “ AI1-AI6 ” with display of
actual values and programmed functions
3 Assignment of signal at “ E2 ” to analog input “ AI1 ”
4 Assignment of signal at “ E1 ” to analog input “ AI2 ”
Operating Instructions UNIcon MODBUS Master Programming
L-BAL-E255-GB 1901 Index 001 Part.-No.
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